SpaceSC — Use Case Build Tree
Derived view of PROJECT_LOG + §8.4a.* dispatches. Updated 2026-05-17.
Tier model. Tier 1 = Sources (SKR + Pinecone) · Tier 2 = Insights (Insight Ledger SQLite) · Tier 3 = Research Notes (§8.4a.17 LANDED) · Tier-3-pending = Open Questions (§8.4a.17 LANDED) · Tier 4 = Pedagogical Artifacts (§8.4a.21 dispatch 2026-05-16, build pending trigger — cloud-native D1 + R2 + Queues, audio-native learning modules joining the Commute Player library).
Research Session is a horizontal pattern across UC1–UC4 (§8.4a.17 W7 LANDED for UC1; §8.4a.18–.20 queued for UC2–UC4).
§8.11 Always-On Architecture Principle (pending OPERATIONS_PLAYBOOK promotion): new builds default to cloud-side substrates. §8.4a.22 queued — migrates Mac-bound il-server / rn-server SQLite to D1 once §8.4a.21 pattern proves for 30+ days.
SpaceSC use case build trees — five use cases with collapsible feature phases and build status